THE EFFECTS OF GUAVA ( Psidium guajava ) CONSUMPTION ON TOTAL ANTIOXIDANT AND LIPID PROFILE IN NORMAL MALE YOUTH
Fruits contain a broad spectrum of nutrients, and many of which have antioxidant properties. Phenolic substances, vitamin A, vitamin C and minerals that are present in fruits displayed high antioxidant activity. Thes properties have been associated with the decreased risk of certain degenerative dis...
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Veröffentlicht in: | African journal of food, agriculture, nutrition, and development : AJFAND agriculture, nutrition, and development : AJFAND, 2006-11, Vol.6 (2), p.np-np |
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Sprache: | eng ; fre |
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Zusammenfassung: | Fruits contain a broad spectrum of nutrients, and many of which have
antioxidant properties. Phenolic substances, vitamin A, vitamin C and
minerals that are present in fruits displayed high antioxidant
activity. Thes properties have been associated with the decreased risk
of certain degenerative diseases. This study was conducted to determine
the effects of guava ( Psidium guajava ) consumption on total
antioxidant status and lipid profile (total cholesterol, triglycerides,
LDLcholesterol and HDL-cholesterol) in normal male youth. This study
was carried out over nine weeks, which was divided into three phases,
that is, baseline (one week), treatment (four weeks) and control (four
weeks). Blood samples were collected at the end of each phase for
biochemical test. Total antioxidant status, glucose, lipid profile and
antioxidant enzymes (glutathione peroxidase and glutathione reductase)
were determined using Cobas Mira auto analyzer (Roche). Dietary intake
in each phase was studied using 24-hours diet recall. There was a
significant increase of total cholesterol, triglyceride and
HDL-cholesterol during the treatment phase, compared to the baseline
and control phases (p < 0.05). The increase of HDL-cholesterol was
associated with the decreased risk of heart attack and cardiovascular
disease. Although there was an increase in total cholesterol and
triglyceride in the treatment phase compared to baseline and control
phases, the increase was still in normal range. There was a significant
increase of total antioxidants during the treatment phase, compared to
the baseline and control phases (p < 0.05). There were trends of
reduction for both glutathione peroxidase and glutathione reductase in
the treatment phase as compared to baseline and control phases.
However, the reduction was not statistically significant. The reduction
of antioxidant enzymes was associated with decreased oxidative stress
and decrease in free radical activities. The consumption of guava,
therefore, could result in improved antioxidant status and lipid
profile. Thus, it could reduce the risk of disease caused by free
radical activities and high cholesterol in blood.
Les fruits contiennent une large gamme de substances nutritives, et la
plupart d'entre eux sont caractérisés par des
propriétés d'antioxydant. Les substances phénoliques, la
vitamine A, la vitamine C et les minéraux que l'on trouve dans les
fruits ont affiché une activité intense d'antioxydant. Ces
propriétés ont été associées au r |
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ISSN: | 1684-5358 1684-5374 |